Improvement in mansard roofs



UNITED STATES PATENT OFFICE.

WILLIAM UONOL-LY, OF NEW YORK, N. Y.

lMPROVEMEN T IN MANSARD ROOFS Specification forming part of LettersPatent No. 157,274, dated December 1, 1874; application filed October 3,1874.

To all whom it may concern:

Be it known that I, WILLIAM GoNoLLY, of the city, county, and State ofNew York, have invented, made, and applied to use Improvements in theConstruction of Mansard Roofs, of which the following is aspecification, reference being bad to the accompanying drawing makingpart of this specification, and to the letters of reference markedthereon, in which- Figure 1 is a vertical section of my improved Mansardroof. Fig. 2 is an elevation from the interior of the same. Fi 3 is ahorizontal section through the joint of bricks used. Fig. 4 is anelevation from the front side of the roof.

In the drawing like parts of the invention are designated by the sameletters of reference.

The nature of the present invention consists in the construction, asmore fully hereinafter set forth, of an improved Mansard roof forbuildings; the object of the invention being the construction of a roofwhich shall be fireproof, and one which can be easily repaired, at a lowcost, when repairs are necessary.

To enable those skilled in the arts to make and use my invention, I willdescribe the same.

A is a frame-work, formed of wrought-iron or any suitable material,intended to receive and support a series of fire-bricks, B. C shows aseries of knees riveted to the front ends of the frame A, and having abearin g upon the bricks B, and employed to hold the same in position.The bricks B are made of the proper length to fill the space between theends of the frame A, and a dovetailed groove, 1), is formed at the backof each brick, for the purpose hereinafter stated. D is a series ofslates placed upon the front of the roof, directly in advance of, andlaid upon, the bricks B, and held in this position by a series of wires,E, passed through openings in the slates, and also passed through thejoints of the bricks B, and fastened around a series of iron pins, F,properly placed in position, and resting upon the bricks B for thispurpose. G shows an angle-iron secured to the frame A, near its upperedge, to support the beams of the roof; and H are knees secured to thelower ends of the frame A, and connecting it to a wall-plate, L, bywhich the frame is attached to the front wall of the building by meansof anchors O. The frame A is bolted to the wall-plate L, attached to thefront wall of the building, and the angle-iron G is now attached to theframe A. The bricks B are then placed in position Within the frame A,being laid in cement, and held in position by the back of the frame Aand the knees O, secured upon the front of the frame. The slates D arenow placed upon the front of the roof over the bricks B, and arefastened securely in position by the wires E passed through openings inthe slates, through the joints between the bricks, and fastened aroundthe pins F placed upon the back of the bricks. The joints between thebricks are then closed by cement, the dovetailed portion of the brickscausing the cement to adhere more closely and thoroughly.

The advantages of constructing a Mansard roof as set forth are, that aroof so constructed is fire-proof; that if at any time necessary torepair the slates used, if broken or cracked, easy access maybe had tothe same by cutting away the cement, loosening the wires by which theslates are held, and removing the damaged slates and putting on the newones; and that this operation can be expeditiously performed.

Having now set forth my invention, what I claim as new isl. Thecombination of the frame A, bricks B, and knees O, as and for thepurpose specified.

2. The combination of the frame A, bricks B, knees O, slates D, wires E,and pins F, as and for the purposes set forth.

WILLIAM OONOLLY.

In presence of JOSEPH H. TOONE, Orms. H. QUAIL.

